<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="分类名称" prop="categoryName">
        <el-input
          v-model="queryParams.categoryName"
          placeholder="请输入分类名称"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="分类编码" prop="categoryCode">
        <el-input
          v-model="queryParams.categoryCode"
          placeholder="请输入分类编码"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="父分类ID" prop="parentId">
        <el-input
          v-model="queryParams.parentId"
          placeholder="请输入父分类ID"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="排序号" prop="sort">
        <el-input
          v-model="queryParams.sort"
          placeholder="请输入排序号"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['bookSys:category:add']"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['bookSys:category:edit']"
        >修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['bookSys:category:remove']"
        >删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['bookSys:category:export']"
        >导出</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="categoryList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="分类ID" align="center" prop="categoryId" />
      <el-table-column label="分类名称" align="center" prop="categoryName" />
      <el-table-column label="分类编码" align="center" prop="categoryCode" />
      <el-table-column label="父分类ID" align="center" prop="parentId" />
      <el-table-column label="排序号" align="center" prop="sort" />
      <el-table-column label="分类备注" align="center" prop="remark" />
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['bookSys:category:edit']"
          >修改</el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['bookSys:category:remove']"
          >删除</el-button>
        </template>
      </el-table-column>
    </el-table>
    
    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改图书分类对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="分类名称" prop="categoryName">
          <el-input v-model="form.categoryName" placeholder="请输入分类名称" />
        </el-form-item>
        <el-form-item label="分类编码" prop="categoryCode">
          <el-input v-model="form.categoryCode" placeholder="请输入分类编码" />
        </el-form-item>
        <el-form-item label="父分类ID" prop="parentId">
          <el-input v-model="form.parentId" placeholder="请输入父分类ID" />
        </el-form-item>
        <el-form-item label="排序号" prop="sort">
          <el-input v-model="form.sort" placeholder="请输入排序号" />
        </el-form-item>
        <el-form-item label="分类备注" prop="remark">
          <el-input v-model="form.remark" placeholder="请输入分类备注" />
        </el-form-item>
        <el-form-item label="删除标志" prop="delFlag">
          <el-input v-model="form.delFlag" placeholder="请输入删除标志" />
        </el-form-item>
        <el-divider content-position="center">图书信息信息</el-divider>
        <el-row :gutter="10" class="mb8">
          <el-col :span="1.5">
            <el-button type="primary" icon="el-icon-plus" size="mini" @click="handleAddBookInfo">添加</el-button>
          </el-col>
          <el-col :span="1.5">
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="handleDeleteBookInfo">删除</el-button>
          </el-col>
        </el-row>
        <el-table :data="bookInfoList" :row-class-name="rowBookInfoIndex" @selection-change="handleBookInfoSelectionChange" ref="bookInfo">
          <el-table-column type="selection" width="50" align="center" />
          <el-table-column label="序号" align="center" prop="index" width="50"/>
          <el-table-column label="ISBN编号" prop="bookIsbn" width="150">
            <template slot-scope="scope">
              <el-input v-model="scope.row.bookIsbn" placeholder="请输入ISBN编号" />
            </template>
          </el-table-column>
          <el-table-column label="图书名称" prop="bookName" width="150">
            <template slot-scope="scope">
              <el-input v-model="scope.row.bookName" placeholder="请输入图书名称" />
            </template>
          </el-table-column>
          <el-table-column label="作者" prop="author" width="150">
            <template slot-scope="scope">
              <el-input v-model="scope.row.author" placeholder="请输入作者" />
            </template>
          </el-table-column>
          <el-table-column label="出版社" prop="publisher" width="150">
            <template slot-scope="scope">
              <el-input v-model="scope.row.publisher" placeholder="请输入出版社" />
            </template>
          </el-table-column>
          <el-table-column label="出版日期" prop="publishDate" width="240">
            <template slot-scope="scope">
              <el-date-picker clearable v-model="scope.row.publishDate" type="date" value-format="yyyy-MM-dd" placeholder="请选择出版日期" />
            </template>
          </el-table-column>
          <el-table-column label="图书封面URL" prop="bookCover" width="150">
            <template slot-scope="scope">
              <el-input v-model="scope.row.bookCover" placeholder="请输入图书封面URL" />
            </template>
          </el-table-column>
          <el-table-column label="总库存数量" prop="totalNum" width="150">
            <template slot-scope="scope">
              <el-input v-model="scope.row.totalNum" placeholder="请输入总库存数量" />
            </template>
          </el-table-column>
          <el-table-column label="可借数量" prop="availableNum" width="150">
            <template slot-scope="scope">
              <el-input v-model="scope.row.availableNum" placeholder="请输入可借数量" />
            </template>
          </el-table-column>
          <el-table-column label="图书定价" prop="price" width="150">
            <template slot-scope="scope">
              <el-input v-model="scope.row.price" placeholder="请输入图书定价" />
            </template>
          </el-table-column>
          <el-table-column label="排序号" prop="sort" width="150">
            <template slot-scope="scope">
              <el-input v-model="scope.row.sort" placeholder="请输入排序号" />
            </template>
          </el-table-column>
        </el-table>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { listCategory, getCategory, delCategory, addCategory, updateCategory } from "@/api/bookSys/category"

export default {
  name: "Category",
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 子表选中数据
      checkedBookInfo: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 图书分类表格数据
      categoryList: [],
      // 图书信息表格数据
      bookInfoList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        categoryName: null,
        categoryCode: null,
        parentId: null,
        sort: null,
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        categoryName: [
          { required: true, message: "分类名称不能为空", trigger: "blur" }
        ],
        categoryCode: [
          { required: true, message: "分类编码不能为空", trigger: "blur" }
        ],
      }
    }
  },
  created() {
    this.getList()
  },
  methods: {
    /** 查询图书分类列表 */
    getList() {
      this.loading = true
      listCategory(this.queryParams).then(response => {
        this.categoryList = response.rows
        this.total = response.total
        this.loading = false
      })
    },
    // 取消按钮
    cancel() {
      this.open = false
      this.reset()
    },
    // 表单重置
    reset() {
      this.form = {
        categoryId: null,
        categoryName: null,
        categoryCode: null,
        parentId: null,
        sort: null,
        remark: null,
        createBy: null,
        createTime: null,
        updateBy: null,
        updateTime: null,
        delFlag: null
      }
      this.bookInfoList = []
      this.resetForm("form")
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1
      this.getList()
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm")
      this.handleQuery()
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.categoryId)
      this.single = selection.length!==1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset()
      this.open = true
      this.title = "添加图书分类"
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset()
      const categoryId = row.categoryId || this.ids
      getCategory(categoryId).then(response => {
        this.form = response.data
        this.bookInfoList = response.data.bookInfoList
        this.open = true
        this.title = "修改图书分类"
      })
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          this.form.bookInfoList = this.bookInfoList
          if (this.form.categoryId != null) {
            updateCategory(this.form).then(response => {
              this.$modal.msgSuccess("修改成功")
              this.open = false
              this.getList()
            })
          } else {
            addCategory(this.form).then(response => {
              this.$modal.msgSuccess("新增成功")
              this.open = false
              this.getList()
            })
          }
        }
      })
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const categoryIds = row.categoryId || this.ids
      this.$modal.confirm('是否确认删除图书分类编号为"' + categoryIds + '"的数据项？').then(function() {
        return delCategory(categoryIds)
      }).then(() => {
        this.getList()
        this.$modal.msgSuccess("删除成功")
      }).catch(() => {})
    },
	/** 图书信息序号 */
    rowBookInfoIndex({ row, rowIndex }) {
      row.index = rowIndex + 1
    },
    /** 图书信息添加按钮操作 */
    handleAddBookInfo() {
      let obj = {}
      obj.bookIsbn = ""
      obj.bookName = ""
      obj.author = ""
      obj.publisher = ""
      obj.publishDate = ""
      obj.bookDesc = ""
      obj.bookCover = ""
      obj.totalNum = ""
      obj.availableNum = ""
      obj.price = ""
      obj.sort = ""
      this.bookInfoList.push(obj)
    },
    /** 图书信息删除按钮操作 */
    handleDeleteBookInfo() {
      if (this.checkedBookInfo.length == 0) {
        this.$modal.msgError("请先选择要删除的图书信息数据")
      } else {
        const bookInfoList = this.bookInfoList
        const checkedBookInfo = this.checkedBookInfo
        this.bookInfoList = bookInfoList.filter(function(item) {
          return checkedBookInfo.indexOf(item.index) == -1
        })
      }
    },
    /** 复选框选中数据 */
    handleBookInfoSelectionChange(selection) {
      this.checkedBookInfo = selection.map(item => item.index)
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('bookSys/category/export', {
        ...this.queryParams
      }, `category_${new Date().getTime()}.xlsx`)
    }
  }
}
</script>
